First Evidence of Altererythrobacter sp. LY02 with Indirect Algicidal Activity on the Toxic Dinoflagellate, Alexandrium tamarense
| Autor: | Yanting Xu, Yi Li, Hailei Wang, Lei Liu, Tianling Zheng, Chengwei Guan, Xueqian Lei, Wei Zheng |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Harmful Algal Bloom Antiprotozoal Agents 01 natural sciences Applied Microbiology and Biotechnology Microbiology Algal bloom 03 medical and health sciences Drug Stability Alphaproteobacteria biology 010604 marine biology & hydrobiology Dinoflagellate Algal growth General Medicine Hydrogen-Ion Concentration biology.organism_classification 030104 developmental biology Alexandrium tamarense Altererythrobacter sp Dinoflagellida Marine economy Bacteria |
| Zdroj: | Current Microbiology. 73:550-560 |
| ISSN: | 1432-0991 0343-8651 |
| DOI: | 10.1007/s00284-016-1093-x |
| Popis: | Alexandrium tamarense is a toxic harmful algal blooms (HABs) causing species, which poses great threat to human health and marine economy. In this study, we isolated an algicidal bacterium Altererythrobacter sp. LY02 towards to A. tamarense and later investigated the algicidal activity, algicidal mode, characteristics of algicidal active substance and algicidal procedure. The results indicated that the cell-free filtrate of strain LY02 showed high algicidal effect on algal growth, however, bacterial cells almost lost algicidal activity. The algicidal active substance was temperature- and pH-stability, and its molecular weight was less than 1000 Da, and was a non-proteinaceous material or non-polysaccharide, mid-polar substance. Under the algicidal effect of active substance, the morphology and structure of A. tamarense cells were seriously damaged as well as organelles. Our study confirmed that the algicidal active substance could be used as an excellent bio-agent for controlling HABs caused by A. tamarense. |
| Databáze: | OpenAIRE |
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